Koch Lesson 2: Add the Letter R

Why this step

R (.-.) is the first dit-led three-element letter. It sits in the same length class as K but starts on a dit instead of a dah. Adding it now tests whether you learned K as a sound, or as “the one with dashes.”

What to hear

R is “dit-dah-dit.” Compared with K (“dah-dit-dah”), the bookends swap. A common miss: hearing the middle dah of R and calling it K. Wait for the first element — dit means R, dah means K.

Drill

Active set: K, M, R. Random copy only. If R is weak, do not drop speed; repeat R against K in the same session. The trainer link below locks lesson 2 so a partner starts with the same three letters.

Letter groups you can type in the translator once the ear is warm: KR, MR, RM, RR

Pitfall

Mnemonic “radio” is fine after the session, not during it. During copy, refuse to translate into words until the letter is already named.